As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - C - DURING C-15 CHECK MAINTENANCE DISCOVERED STR 18A CRACKED AT INBOARD AFT CORNER LT WHEEL WELL. MAINTENANCE CUT OUT DAMAGED AREA AND PERFORMED HFEC INSPECTION TO VERIFY CRACK WAS CONTAINED. FABRICATED AND INSTALLED FILLER AND L-STIFFENER BS 727, IAW AWA ER 03-5312-01353-TB1.